cornwell and j



-E. E. CORNWELL AND J. H. McCREADY, BURNER.

APPLICATlON FltED FEB. 19, 1921.

1,405,101, Patented Jan.31,1922,

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ATTORNEYS ELMER EDGAR CORNWELL, AND JOSEPH HARRY MGCREADY, crow/roman,

'OKLAHQMA.

BURNER.

To all whom it may concern Be it known that we, ELMER EDGAR CORN- WELL and Josnrir HARRY MOCREADY, citizen's of the United States,'and residents of'Okmulgee, in the county of Olrmulgee and State of Oklahoma, have invented certain new and useful Improvements in Burners, of which the following is .a specification.

The present invention relates in general to burners-and more particularly to a gas burner especially adapted for returntubular boilers and stills. g N V Theobject of the invention is to provide aburneiof this character which is of simple and durable construction, reliable in operation and easy and inexpensive to manufacture and apply and which provides for a thorough, uniform and efiicient mixture whereby the fuel is completely consumed and-a maximum amount of heat is evolved therefrom. v V Other objects and advantages reside in certain novel features of the construction, arrangement and combination of parts which will 'be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming part of this specification, and inwhich -Figure 1 is a side elevational view of the burner embodying the invention,

Figure 2 is a longitudinal sectional view therethrough, .Figure 3 thereof, v

Figure 4 is a transverse sectional view.

Referring to the drawings wherein forthe sake of illustration is shown the preferred embodiment of the invention, the numeral 10 designates an enclosed annular fuel chamber Which is preferably of integral construcis an end elevational View tion and comprises inner and outer circular walls 11 and 12 respectively, spaced from I each other and integral with lateral walls or faces 13 and 14 which complete the structure. These walls define an annular fuel space 15 and the fuel chamber is adapted for connection with the fuel supply by means of an internally threaded nipple 16 or the like. The inner circular wall 11 of the fuel chamber defines an axial inlet 17 forthe air and a swinging plate 18 arranged at one end of the inlet constitutes a damper therefor, it

being pivoted to the fuel chamber and see:

cured thereto in adjusted position by means of a bolt and nut 19. The lateral-faceor Specification of Letters Patent. Pgytgyted. 1131, 11922,

Application filed February 19, 1921. Serial ire-5446317. I

wall 18 of the fuel-chamber is provided with y a circular series of-discharge openingsdesig' nated at 20 from which the fuelis projected The mixing chamber is arranged in: co-

operative relation to thefuelchamber'and consists of an open'ended shell 21'Which has assume a substantially elliptical form as'ma'y its'inletj end adjacent the fuel chamber-of E circular form and which is flattened fora be seen by a comparison of'Figures 1 and 3' The fuel chamber and the circular openend-of the mixing chamber define asubstan tially annular vinlet for-the air designated 7 at 22. 7 It is thus'seen that-when the damper 18 is open and the fuel is being projected from the discharge orifices 20 that it entrains an inner and an outer layeror strata of, air and is thussurrounlded on allsides bythe air and during its. travel through-the mixing chamber it is thoroughly' con 1inin'gledtherehighly efficient mixture.

with to produce a uniform, complete and Means is provided for aint'aining the;

fuel chamber andthe mixing'chamber in proper relation-"and for adjusting these I chambers with respect toeach'other so thati' oo the proper relation maybe obtained under various cond tions. This-means includes 'a plurality, preferably a pair, of slotted arms I indicated at 23 and arranged at'diametrically opposite points withurespect tosaid chambers. The. arms are integral or other: wise secured to the mixing chamberand are ofiset to extend along the exterior wall of the 7 fuel chamber.

these slotsstuds 25 carried by the fuel cham on the outer ends ofsa'id studs and cooperat- They are bifurcatedor-other V wise formed to define a slot 24 andthrough I .95; berextend and by means of nuts 26 threaded ing with the slotted arms the chambersare secured or maintained'in proper relation; or connected. to the supply of fuel and the I mixing chamber and fuel chamber areads In practice the inlet nipple 16 is coupled justed to proper position or relation with respect to each other by 'manip ulatin nuts 26 and sliding the chambers longitudlnally with respect to each other and then securing them n proper position by ti ht ng these nuts 26 When this adyugt has, I

the

been effected and the supply of fuel is turned on it fills the annular fuel space 15 and from this fuel space it is projected through the discharge orifices 20 into the mixing chamber. The fuel in the mixing chamber may either be entirely surrounded by inner and outer layers or stratas of air or it may simply be surrounded by an outer strata of air,

this variation. being effected by opening or closing respectively the damper 18. In this manner the burner may be adapted to the various conditions and exigencies which have to be met and Will in all events producea uniform, complete and efficient mixture from avhichthe maximum degree of heat Will be evolved.

lVe claim one of the open ends of said shell and the open end of said mixing-chamber adjacent said fuel chamber being 10f circular form whereby said fuel chamber and said mixing chamber define an annular air. inlet, and

means for maintaining said fuel chamber and SdCl mixing chamber 1n proper relatlon 1ncluding arms fixed toone of said chambers and having elongated slots therein, studs fixed to the other of said, chambers projecting through said slots and nuts threaded on said studs and cooperating with said arms.

2. In a burner of the character descrlbed, an enclosed annular fuel chamber comprising inner and outer spaced circular Walls and lateral walls or faces integral With said circular Walls and defining an annular fuel space, one of said lateral Walls belngprovided with a series of discharge orifices, an

open ended shell defining a mixing chamber, the fuel chamber being arranged adjacent one of the open ends of said shell and the open end of said mixing chamber adjacent said fuel chamber being of circular form' whereby said fuel chamber and'said mixing ,chamber define an annular air inlet, and means for maintaining said fuel chamber and said mixing chamber in proper relation including arms fixed to one of said chambers V and having elongated slots therein, studs fixed to the other of said cha-mbers,projecting-through said slots and nuts threaded on said studs and cooperating wlth sa1d arm's In a burner of the character described, an enclosed annular fuel chamber having a circular series of discharge orifices one of its lateral faces, an open-ended shell defin ing a mixing. chamber, said annular fuel chamber being arranged adjacent one offithe open ends of said shell to define therewithv an annular air inlet-and means for maintain- V 1 ing said fuel chamber and said mix-ingchamher in proper relation, including arms fixed to one of said chambers and having elongated slots therein and studs and nuts, c0- operating with said slotted arms.

ELMER EDGAR-CORNWELLL JOSEPH I-IABBY'NIGCREADY, V 

